Hypernuclear spectroscopy of products from 6Li projectiles on a carbon target at 2AGeV

C. Rappold; E. Kim; D. Nakajima; T. R. Saito; O. Bertini; S. Bianchin; V. Bozkurt; M. Kavatsyuk; Y. Ma; F. Maas; S. Minami; B. Özel-Tashenov; K. Yoshida; P. Achenbach; S. Ajimura; T. Aumann; C. Ayerbe Gayoso; H. C. Bhang; C. Caesar; S. Erturk; T. Fukuda; B. Göküzüm; E. Guliev; T. Hiraiwa; J. Hoffmann; G. Ickert; Z. S. Ketenci; D. Khaneft; M. Kim; S. Kim; K. Koch; N. Kurz; A. Le Fèvre; Y. Mizoi; M. Moritsu; T. Nagae; L. Nungesser; A. Okamura; W. Ott; J. Pochodzalla; A. Sakaguchi; M. Sako; C. J. Schmidt; M. Sekimoto; H. Simon; H. Sugimura; T. Takahashi; G. J. Tambave; H. Tamura; W. Trautmann; S. Voltz; N. Yokota; C. J. Yoon

doi:10.1016/j.nuclphysa.2013.05.019

Hypernuclear spectroscopy of products from ⁶Li projectiles on a carbon target at 2AGeV

C. Rappold, E. Kim, D. Nakajima, T. R. Saito, O. Bertini, S. Bianchin, V. Bozkurt, M. Kavatsyuk, Y. Ma, F. Maas, S. Minami, B. Özel-Tashenov, K. Yoshida, P. Achenbach, S. Ajimura, T. Aumann, C. Ayerbe Gayoso, H. C. Bhang, C. Caesar, S. ErturkT. Fukuda, B. Göküzüm, E. Guliev, T. Hiraiwa, J. Hoffmann, G. Ickert, Z. S. Ketenci, D. Khaneft, M. Kim, S. Kim, K. Koch, N. Kurz, A. Le Fèvre, Y. Mizoi, M. Moritsu, T. Nagae, L. Nungesser, A. Okamura, W. Ott, J. Pochodzalla, A. Sakaguchi, M. Sako, C. J. Schmidt, M. Sekimoto, H. Simon, H. Sugimura, T. Takahashi, G. J. Tambave, H. Tamura, W. Trautmann, S. Voltz, N. Yokota, C. J. Yoon

School of Earth System Sciences

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy ion beams, was conducted. Using the invariant mass method, the spectroscopy of hypernuclear products of ⁶Li projectiles on a carbon target at 2AGeV was performed. Signals of the Λ-hyperon and HΛ3 and HΛ4 hypernuclei were observed for final states of p + ^{π -}, He3+π- and He4+π-, respectively, with significance values of 6.7, 4.7 and 4.9σ. By analyzing the proper decay time from secondary vertex distribution with the unbinned maximum likelihood fitting method, their lifetime values were deduced to be 262-43+56±45ps for Λ, 183-32+42±37ps for HΛ3, and 140-33+48±35ps for HΛ4.

Original language	English
Pages (from-to)	170-184
Number of pages	15
Journal	Nuclear Physics A
Volume	913
DOIs	https://doi.org/10.1016/j.nuclphysa.2013.05.019
State	Published - 2 Sep 2013

Keywords

Compared with other data
Deduced
Lifetime measurement
Measured
Nuclear reactions

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10.1016/j.nuclphysa.2013.05.019

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Rappold, C., Kim, E., Nakajima, D., Saito, T. R., Bertini, O., Bianchin, S., Bozkurt, V., Kavatsyuk, M., Ma, Y., Maas, F., Minami, S., Özel-Tashenov, B., Yoshida, K., Achenbach, P., Ajimura, S., Aumann, T., Ayerbe Gayoso, C., Bhang, H. C., Caesar, C., ... Yoon, C. J. (2013). Hypernuclear spectroscopy of products from ⁶Li projectiles on a carbon target at 2AGeV. Nuclear Physics A, 913, 170-184. https://doi.org/10.1016/j.nuclphysa.2013.05.019

@article{a5d34f81802b4f93aee1334c11bd163a,

title = "Hypernuclear spectroscopy of products from 6Li projectiles on a carbon target at 2AGeV",

abstract = "A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy ion beams, was conducted. Using the invariant mass method, the spectroscopy of hypernuclear products of 6Li projectiles on a carbon target at 2AGeV was performed. Signals of the Λ-hyperon and HΛ3 and HΛ4 hypernuclei were observed for final states of p + π -, He3+π- and He4+π-, respectively, with significance values of 6.7, 4.7 and 4.9σ. By analyzing the proper decay time from secondary vertex distribution with the unbinned maximum likelihood fitting method, their lifetime values were deduced to be 262-43+56±45ps for Λ, 183-32+42±37ps for HΛ3, and 140-33+48±35ps for HΛ4.",

keywords = "Compared with other data, Deduced, Lifetime measurement, Measured, Nuclear reactions",

author = "C. Rappold and E. Kim and D. Nakajima and Saito, {T. R.} and O. Bertini and S. Bianchin and V. Bozkurt and M. Kavatsyuk and Y. Ma and F. Maas and S. Minami and B. {\"O}zel-Tashenov and K. Yoshida and P. Achenbach and S. Ajimura and T. Aumann and {Ayerbe Gayoso}, C. and Bhang, {H. C.} and C. Caesar and S. Erturk and T. Fukuda and B. G{\"o}k{\"u}z{\"u}m and E. Guliev and T. Hiraiwa and J. Hoffmann and G. Ickert and Ketenci, {Z. S.} and D. Khaneft and M. Kim and S. Kim and K. Koch and N. Kurz and {Le F{\`e}vre}, A. and Y. Mizoi and M. Moritsu and T. Nagae and L. Nungesser and A. Okamura and W. Ott and J. Pochodzalla and A. Sakaguchi and M. Sako and Schmidt, {C. J.} and M. Sekimoto and H. Simon and H. Sugimura and T. Takahashi and Tambave, {G. J.} and H. Tamura and W. Trautmann and S. Voltz and N. Yokota and Yoon, {C. J.}",

year = "2013",

month = sep,

day = "2",

doi = "10.1016/j.nuclphysa.2013.05.019",

language = "English",

volume = "913",

pages = "170--184",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

}

Rappold, C, Kim, E, Nakajima, D, Saito, TR, Bertini, O, Bianchin, S, Bozkurt, V, Kavatsyuk, M, Ma, Y, Maas, F, Minami, S, Özel-Tashenov, B, Yoshida, K, Achenbach, P, Ajimura, S, Aumann, T, Ayerbe Gayoso, C, Bhang, HC, Caesar, C, Erturk, S, Fukuda, T, Göküzüm, B, Guliev, E, Hiraiwa, T, Hoffmann, J, Ickert, G, Ketenci, ZS, Khaneft, D, Kim, M, Kim, S, Koch, K, Kurz, N, Le Fèvre, A, Mizoi, Y, Moritsu, M, Nagae, T, Nungesser, L, Okamura, A, Ott, W, Pochodzalla, J, Sakaguchi, A, Sako, M, Schmidt, CJ, Sekimoto, M, Simon, H, Sugimura, H, Takahashi, T, Tambave, GJ, Tamura, H, Trautmann, W, Voltz, S, Yokota, N & Yoon, CJ 2013, 'Hypernuclear spectroscopy of products from ⁶Li projectiles on a carbon target at 2AGeV', Nuclear Physics A, vol. 913, pp. 170-184. https://doi.org/10.1016/j.nuclphysa.2013.05.019

TY - JOUR

T1 - Hypernuclear spectroscopy of products from 6Li projectiles on a carbon target at 2AGeV

AU - Rappold, C.

AU - Kim, E.

AU - Nakajima, D.

AU - Saito, T. R.

AU - Bertini, O.

AU - Bianchin, S.

AU - Bozkurt, V.

AU - Kavatsyuk, M.

AU - Ma, Y.

AU - Maas, F.

AU - Minami, S.

AU - Özel-Tashenov, B.

AU - Yoshida, K.

AU - Achenbach, P.

AU - Ajimura, S.

AU - Aumann, T.

AU - Ayerbe Gayoso, C.

AU - Bhang, H. C.

AU - Caesar, C.

AU - Erturk, S.

AU - Fukuda, T.

AU - Göküzüm, B.

AU - Guliev, E.

AU - Hiraiwa, T.

AU - Hoffmann, J.

AU - Ickert, G.

AU - Ketenci, Z. S.

AU - Khaneft, D.

AU - Kim, M.

AU - Kim, S.

AU - Koch, K.

AU - Kurz, N.

AU - Le Fèvre, A.

AU - Mizoi, Y.

AU - Moritsu, M.

AU - Nagae, T.

AU - Nungesser, L.

AU - Okamura, A.

AU - Ott, W.

AU - Pochodzalla, J.

AU - Sakaguchi, A.

AU - Sako, M.

AU - Schmidt, C. J.

AU - Sekimoto, M.

AU - Simon, H.

AU - Sugimura, H.

AU - Takahashi, T.

AU - Tambave, G. J.

AU - Tamura, H.

AU - Trautmann, W.

AU - Voltz, S.

AU - Yokota, N.

AU - Yoon, C. J.

PY - 2013/9/2

Y1 - 2013/9/2

N2 - A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy ion beams, was conducted. Using the invariant mass method, the spectroscopy of hypernuclear products of 6Li projectiles on a carbon target at 2AGeV was performed. Signals of the Λ-hyperon and HΛ3 and HΛ4 hypernuclei were observed for final states of p + π -, He3+π- and He4+π-, respectively, with significance values of 6.7, 4.7 and 4.9σ. By analyzing the proper decay time from secondary vertex distribution with the unbinned maximum likelihood fitting method, their lifetime values were deduced to be 262-43+56±45ps for Λ, 183-32+42±37ps for HΛ3, and 140-33+48±35ps for HΛ4.

AB - A novel experiment, aiming at demonstrating the feasibility of hypernuclear spectroscopy with heavy ion beams, was conducted. Using the invariant mass method, the spectroscopy of hypernuclear products of 6Li projectiles on a carbon target at 2AGeV was performed. Signals of the Λ-hyperon and HΛ3 and HΛ4 hypernuclei were observed for final states of p + π -, He3+π- and He4+π-, respectively, with significance values of 6.7, 4.7 and 4.9σ. By analyzing the proper decay time from secondary vertex distribution with the unbinned maximum likelihood fitting method, their lifetime values were deduced to be 262-43+56±45ps for Λ, 183-32+42±37ps for HΛ3, and 140-33+48±35ps for HΛ4.

KW - Compared with other data

KW - Deduced

KW - Lifetime measurement

KW - Measured

KW - Nuclear reactions

UR - http://www.scopus.com/inward/record.url?scp=84879751885&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysa.2013.05.019

DO - 10.1016/j.nuclphysa.2013.05.019

M3 - Article

AN - SCOPUS:84879751885

SN - 0375-9474

VL - 913

SP - 170

EP - 184

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -

Hypernuclear spectroscopy of products from ⁶Li projectiles on a carbon target at 2AGeV

Abstract

Keywords

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